The portable fan uses an 800 3mAh rechargeable lithium battery with 3 adjustable speeds. Small size and weight designed for children. Lanyard design frees hands, perfect for travelThis mini portable fan can be used outdoors as a handheld fan and in the office as a mini desk fan on a tablet.This mini portable fan has a removable cover for easy cleaning, separate the cover from the fan counterclockwise. Plus, it's small and easy to carry in a bag. Great for commuting/travel/shoppingbricnic/office. This will be one of your must-have bags for summer.Reduce the gap in the fan cover to prevent children from inserting their fingers. Safe to use. This portable fan also has a lanyard hole design so you can hang it on your fingers or on your bag. It is really convenient to carry. And using high-quality ABS material, excellent oil resistance, excellent touch, not greasy.The use of brushless motor and optimized air duct design minimizes noise. Feel the breeze when you use this USB fan in third gear. The wind blows gently, like a summer breeze, quiet and free, enjoying the summer wind and sunshine.quantity: 1Size: 61mm*31mm*115mmColor: green